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authorMike Frysinger <vapier@gentoo.org>2010-04-29 02:49:41 -0400
committerMike Frysinger <vapier@gentoo.org>2010-07-05 04:18:18 -0400
commitb30453ace4eb930ab224012bd2367fa3d1337ced (patch)
tree1929b3bf7289adf244d9ead863fe4ff6c1f3d7bc /arch/blackfin
parenta5384ae49a52e2d4744aed20d729ccf20e7a907a (diff)
downloadu-boot-linaro-stable-b30453ace4eb930ab224012bd2367fa3d1337ced.tar.gz
Blackfin: expand EVT1 usage documentation a bit more
Signed-off-by: Mike Frysinger <vapier@gentoo.org>
Diffstat (limited to 'arch/blackfin')
-rw-r--r--arch/blackfin/cpu/initcode.c7
1 files changed, 6 insertions, 1 deletions
diff --git a/arch/blackfin/cpu/initcode.c b/arch/blackfin/cpu/initcode.c
index 5f80ad615..9453d5dc4 100644
--- a/arch/blackfin/cpu/initcode.c
+++ b/arch/blackfin/cpu/initcode.c
@@ -675,7 +675,12 @@ void initcode(ADI_BOOT_DATA *bs)
#ifdef CONFIG_BFIN_BOOTROM_USES_EVT1
serial_putc('I');
- /* tell the bootrom where our entry point is */
+ /* Tell the bootrom where our entry point is so that it knows
+ * where to jump to when finishing processing the LDR. This
+ * allows us to avoid small jump blocks in the LDR, and also
+ * works around anomaly 05000389 (init address in external
+ * memory causes bootrom to trigger external addressing IVHW).
+ */
if (CONFIG_BFIN_BOOT_MODE != BFIN_BOOT_BYPASS)
bfin_write_EVT1(CONFIG_SYS_MONITOR_BASE);
#endif